PHP：根据与键值相关的术语对多维数组进行排序

Question

我有以下数组，我想根据 $term = "geo" 对它进行排序，仅与 [result_title] 相关？

Array
(
    [0] => Array
        (
            [result_title] => Agathoklis Georgiou
            [result_subtext] => Active Employee
        )

    [1] => Array
        (
            [result_title] => Frixos Georgiou
            [result_subtext] => Active Employee
        )

    [2] => Array
        (
            [result_title] => George Ellinas
            [result_subtext] => Active Employee
        )

    [3] => Array
        (
            [result_title] => Georgi Georgiev
            [result_subtext] => Active Employee
        )

    [4] => Array
        (
            [result_title] => Charalambos Georgiou
            [result_subtext] => Former Employee
        )

    [5] => Array
        (
            [result_title] => Georgia Kantouna
            [result_subtext] => Former Employee
        )
)

期望的结果应该是：

Array
(
    [0] => Array
        (
            [result_title] => George Ellinas
            [result_subtext] => Active Employee

        )

    [1] => Array
        (
            [result_title] => Georgi Georgiev
            [result_subtext] => Active Employee


        )

    [2] => Array
        (
            [result_title] => Georgia Kantouna
            [result_subtext] => Former Employee
        )

    [3] => Array
        (
            [result_title] => Agathoklis Georgiou
            [result_subtext] => Active Employee
        )

    [4] => Array
        (
            [result_title] => Charalambos Georgiou
            [result_subtext] => Former Employee
        )

    [5] => Array
        (
            [result_title] => Frixos Georgiou
            [result_subtext] => Active Employee
        )
)

我尝试了各种方法，例如：

usort($data, function($a, $b) use ($term) {
    $x = strpos($a["result_title"], $term) === false;
    $y = strpos($b["result_title"], $term) === false;
    if ($x && !$y) return 1;
    if ($y && !$x) return -1;

    // use this if you want to sort alphabetically after the keyword sort:
    return strcmp($a["result_title"], $b["result_title"]);

    // or if you only want to sort by whether or not the keyword was found:
    return 0;
});

和

usort($data, function ($a, $b) use ($term) {
    similar_text($term, $a["result_title"], $percentA);
    similar_text($term, $b["result_title"], $percentB);

    return $percentA === $percentB ? 0 : ($percentA > $percentB ? -1 : 1);
});

和

usort($data, function ($a, $b) use ($term) {
    $levA = levenshtein($term, $a["result_title"]);
    $levB = levenshtein($term, $b["result_title"]);

    return $levA === $levB ? 0 : ($levA > $levB ? 1 : -1);
});

和

usort($data, function($a, $b){ return $a["result_title"] - $b["result_title"]; }); 

还有更多没有任何适当的结果。或者我可能无法理解达到我的结果的方法？

我还检查了：php sorting an array based on a string 和 How to sort an array by similarity in relation to an inputted word.，但答案给了我正在寻找的结果。

Answer 1

这是一个我认为可以满足您需求的功能。我假设您想在单词的开头找到$term 的值。此代码提取标题中包含$term 的任何关键字，然后根据是否找到关键字进行排序，然后按照关键字的顺序，或者如果它们都相同，则在标题上进行排序。

$term = 'geo';
usort($data, function ($a, $b) use ($term) {
    // find the term in first entry
    $t1 = preg_match("/^.*?\b($term\w*)\b.*\$/i", $a['result_title'], $matches) ? $matches[1] : '';
    // find the term in second entry
    $t2 = preg_match("/^.*?\b($term\w*)\b.*\$/i", $b['result_title'], $matches) ? $matches[1] : '';
    // check if the terms were found
    if ($t1 == '' && $t2 != '') return 1;
    if ($t1 != '' && $t2 == '') return -1;
    // found in both - if not the same, just sort on the keyword
    if ($t1 != $t2) return strcmp($t1, $t2);
    // found the same keyword, sort on the whole title
    return strcmp($a['result_title'], $b['result_title']);
});

由于输出很长（这是您要求的），所以我省略了它，但我做了一个demo on 3v4l.org。